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INCOME TAXES (Details 2) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Operating loss carryforwards          
Income taxes paid, net of refunds received     $ 9,600,000 $ 22,400,000 $ 27,400,000
Reconciliation of statutory federal income tax rate to the effective income tax rate          
Federal statutory tax rate     21.00% 35.00% 35.00%
Increase (decrease) in the tax rate resulting from:          
State taxes, net of federal effect     2.40% 5.20% 3.30%
Effect of tax rates of other countries     0.50% (1.80%) (1.40%)
Section 199 deduction     (0.00%) (0.70%) (0.80%)
Change in contingency reserve     0.00% 0.00% (0.20%)
Limitation on deduction of officer’s compensation     0.40% 1.30% 0.60%
Tax Act     (3.20%) (33.90%) 0.00%
Valuation allowance release     0.00% (3.30%) 0.00%
Other     4.30% (3.80%) (0.90%)
Effective tax rate     25.40% (2.00%) 35.60%
Tax benefit as a result of the new legislation (estimate in 2017) $ 1,700,000 $ 26,600,000 $ 1,700,000    
Estimated benefit from valuation allowance release   28,300,000      
One-time repatriation tax on accumulated foreign earnings   200,000      
Liability for the withholding tax on distribution of accumulated foreign earnings   1,500,000   $ 1,500,000  
Activity related to unrecognized tax benefits          
Balance, beginning of the year     875,000 875,000 $ 4,407,000
Additions for tax position related to the current year     125,000 125,000 125,000
Additions for tax position related to the prior year     0 0 56,000
Decreases for tax position related to the prior year     0 0 (250,000)
Prior year reductions:          
Lapse of statute of limitations     (125,000) (125,000) (125,000)
Settlements     0 0 (3,338,000)
Balance, end of the year 875,000 875,000 875,000 875,000 875,000
Interest and penalties     0   $ 100,000
Accruals for payments of interest and penalties 0 $ 0 0 $ 0  
Foreign          
Operating loss carryforwards          
Net operating loss carryforwards $ 26,500,000   26,500,000    
Increase (decrease) in the tax rate resulting from:          
Estimated benefit from valuation allowance release     $ 2,600,000